LTC3722EGN-1#PBF Linear Technology, LTC3722EGN-1#PBF Datasheet - Page 28

• Manufacturer Part Number: LTC3722EGN-1#PBF
• Description: IC CTLR PWM CURRENT-MODE 24SSOP
• Manufacturer: Linear Technology

Specifications of LTC3722EGN-1#PBF

• Pwm Type: Current Mode, Full Bridge
• Number Of Outputs: 1
• Frequency - Max: 1MHz
• Duty Cycle: 98.5%
• Voltage - Supply: 3.8 V ~ 10.3 V
• Buck: No
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: Yes
• Cuk: No
• Isolated: Yes
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 24-SSOP
• Frequency-max: 1MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LTC3722-1/LTC3722-2
Typical applicaTion
relaTeD parTs
PART NUMBER
LTC3723-1/LTC3723-2
LTC3721-1/LTC3721-2
LT1952/LT1952-1
LTC3726/LTC3725
LTC3706/LTC3705
LTC3901
LTC4440

V
0.47 F , 100V = TDK C3216X7R2A474M
1 F , 100V = TDK C4532X7R2A105M
C1, C2: SANYO 16SP180M
C3: AVX TPSE686M020R0150
C4: MuRata DE2E3KH222MB3B
D1, D4, D5, D6: MURS120T3
D2, D3, D7, D8: BAS21
D9: MMBZ5226B
D10: MMBZ5240B
D11: BAT54
D12: MMBZ5231B
L1: SUMIDA CDEP105-1R3MC-50
L2: PULSE PA0651
L3: PA1294.910
L4: COILCRAFT DO1608C-105
Q1, Q2: ZETEX FMMT619
Q3, Q4: ZETEX FMMT718
T1, T2: PULSE PA0526
T3: PULSE PA0785
36V TO
IN
30.1k
182k
72V
+V
–V
IN
IN
1/4W
20k
150
220pF
L1, 1.3µH
A
12V
1µF
100V
1
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
IN
1µF
GND GND TS
4.99k
5V
LTC4440EMS8E
4
20k
V
REF
IN
10
18
12
0.47µF
12V
V
1µF
100V
SBUS
V
UVLO
CC
4
CC
220pF
3
BOOST
2
ADLY
V
TG
REF
8
DESCRIPTION
Synchronous Push-Pull and Full Bridge Controllers
Nonsynchronous Push-Pull and Full Bridge Controllers
Isolated Synchronous Forward Controllers
Isolated Synchronous Forward Controller Chip Set
Isolated Synchronous Forward Controller Chip Set with
Multiphase Capability
Secondary Side Synchronous Driver for Full Bridge and
Push-Pull Converters
High Voltage High Side MOSFET Driver
B
D2
11
14
150k
6
7
●
DPRG NC SYNC
PDLY
FAX: [phone]
12V
9
2
0.22µF
220pF
Q1
Q3
LTC3722/LTC4440 420W, 36V-72V Input to 12V/35A Isolated Full Bridge Supply
8
180pF
1
5.1k
OUTA
LTC3722-1
0.02
1.5W
A
CT
21
24
Si7852DP
Si7852DP
2
SPRG
2
OUTB
150nH
B
L2
13
20
10k
C
1.10k
0.02
1.5W
R
1
OUTC
LEB
C
●
5
33k
IN
19
GND GND
4
LTC4440EMS8E
I
www.linear.com
SNS
FB GND PGND
OUTD
6
D
MMBT3904
12V
V
17
CC
12V
23
3
2
BOOST
8.25k
68µF
OUTF
20V
68nF
C3
8
TG
TS
15
22
D
D3
+
6
7
OUTE
SS
7
12V
COMP
0.22µF
D11
Q2
Q4
100
0.1µF
16
3.3V
22
CS
D9
1M
4
1(1.5mH):0.5
3
I
SNS
1
8
0.47 F
0.47µF
2.2nF
100V
100V
T3
200k
750
330pF
51 , 2W
1mH
L4
Si7852DP
Si7852DP
5V
4
5
2
2
REF
7
6
51
2W
5:5(105µH):1:1
COMMENTS
High Efficiency with On-Chip MOSFET Drivers
Minimizes External Components, On-Chip MOSFET Drivers
Ideal for High Power 24V or 48V Input Applications
Ideal for High Power 24V or 48V Input Applications
Ideal for High Power 24V or 48V Input Applications
Programmable Timeout, Reverse Inductor Current Sense
100V, 2.4A Pull-Up, 1.6Ω Pull-Down, SOT-23 and MSOP-8 Packages
D8
MOC207
D4
5
2.2nF
250V
D7
C4
5:5(105µH):1:1
100
D5
6
1
4
2
4
2
220pF
T2
•
•
•
1
2
100k
330
T1
4.64k
1/4W
•
•
•
•
11
10
8
7
11
10
8
7
SYCN
CSE
6
4.02k
+
D12
5.1V
V
CSE
HIGH
5
2.15k
–
0.047µF
Si7852DP
GND PGND GND2 PGND2
ME
4
1
0.85µH
2
8
COLL
GNDF GNDS R
ME2
L3
4.64k
1/4W
V
LTC3901EGN
+
6
3
3
LT1431
•
COMP R
4
CSF
 LINEAR TECHNOLOGY CORPORATION 2009
470
11
1/4W
4.02k
2.7k
5
+
2
10
CSF
REF
MID
TOP
4
7
12
V
2.15k
–
Si7852DP
HIGH
8
13
LT 0310 REV A • PRINTED IN USA
+V
MF
4
14
OUT
TIMER
MF2 V
9.53k
2.49k
+
–V
15
1.5W
15
7
820pF
200V
OUT
PV
330pF
C1, C2
180µF
16V
CC
CC
2
16
10k
22nF
D1
D6
1
–V
1µF
30.1k
OUT
MMBT3904
–V
1/2W
13k
OUT
1µF
0.47µF
100V
+V
12V
35A
–V
OUT
OUT
+V
372212fa
100
D10
10V
OUT
372212 TA02
1µF
+V
OUT
1k